#all{
    width: 100%;
    height: 100vh;
    /* 控制高度！！！！！！！！ */
    /* background-color: bisque; */
    min-height: 600px;
    background-color: lemonchiffon;
}
#core{
    width: 100%;
    min-width: 1000px;
    height: auto;
    background-color: lemonchiffon;
    padding-top: 80px;
    padding-bottom: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#main{
    width: 90%;
    background-color: white;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#main_t{
    padding-top: 20px;
    height: 600px;
    width: 100%;
}
#gn_d{
    width: 90%;
}

#nr_d{
    width: 100%;
    height: 800px;
}
#nr{
    margin-top: 40px;
    width: 95%;
    height: 680px;
    font-size: 20px;
    background-color: black;
    color: green;

    padding: 20px;
    border-radius: 10px;

}
#nr::-webkit-scrollbar{
    width: 6px ;
    height: 6px ;
}
#nr::-webkit-scrollbar-thumb {
    border-radius: 3px ;
    -moz-border-radius: 3px ;
    -webkit-border-radius: 3px ;
    background-color: #c3c3c3 ;
}
#nr::-webkit-scrollbar-track {
    background-color: transparent ;
}